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Inventor

Hirotaka Hatta

Inventor
Kanagawa, JP

Overview

13→
Patents
1996–2016
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography100%
PatentTitleYear
9,268,292'Image forming apparatus including first and second bias voltage supply devices'20169,201,378'Cleaning unit, process cartridge incorporating same, and image forming apparatus incorporating same'20159,195,204'Image forming apparatus'20159,170,554'Cleaning device, process cartridge, and image forming apparatus'20159,141,020'Charger positioning adjuster and image forming apparatus incorporating same'20158,396,383'Image forming apparatus and process cartridge'20137,953,362'Image forming apparatus, process cartridge, and lubricant applicator'20117,603,053'Image forming apparatus'20096,546,228'Image forming apparatus conveniently upgradable to a duplex image forming apparatus'20035,873,021'Cleaner and toner magazine for electrophotographic apparatus'19995,852,762'Toner magazine and cleaner for an electrophotographic apparatus'19985,697,038'Cleaner and toner magazine for electrophotographic apparatus'19975,555,081'Cleaner and toner magazine for electrophotographic apparatus'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2009Patents assigned to RICOH KK (6)· patent assignee history
1996–1999Based in Ebina, JP· patent location history
2003–2015Based in Kanagawa, JP· patent location history
2011–2016Patents assigned to RICOH CO LTD (7)· patent assignee history
2011–2016Based in Kawasaki, JP· patent location history
2013–2016Patents assigned to HATTA HIROTAKA (6)· patent assignee history
2015–2016Patents assigned to ASAOKA AKIRA (5)· patent assignee history
2015–2016Patents assigned to ISHIZUKA YUSUKE (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD72011–2016
HATTA HIROTAKAself62013–2016
RICOH KK61996–2009
ASAOKA AKIRA52015–2016
ISHIZUKA YUSUKE42015–2016
Locations
LocationPatentsSpan
Kanagawa, JP52003–2015
Kawasaki, JP42011–2016
Ebina, JP41996–1999